On Wed, 5 Sep 2018, a...@codesourcery.com wrote: > This patch creates a new macro SPECIAL_REGNO_P which disables regrename. In > other words, the register is fixed once allocated.
Creating new target macros is generally suspect - the presumption is that target hooks should be used instead, unless it's clear the macro is part of a group of very closely related macros that should all become hooks at the same time (e.g. if adding a new one of the set of *_TYPE macros for standard typedefs, a macro would probably be appropriate rather than making just the new one into a hook). -- Joseph S. Myers jos...@codesourcery.com